In general, eating foods to which you are not sensitive should not cause immune reaction. However, it maybe difficult to find "safe" nuts due to heavy cross-contamination in food manufacturing and processing facilities. Therefore, if you are sensitive to one nut on the Nut Zoomer, the most conservative approach may be to avoid all nuts.
If sensitive to one nut on the Nut Zoomer, do I need to avoid all nuts?
Adair